What is the Puppeteer equivalent of document.readyState?
Rashid D
rashid d profile pic

The Puppeteer equivalent ofdocument.readyState is thepage.waitForNavigation() method with the{ waitUntil: 'networkidle0' } option. Here's a detailed explanation: 1. Launching a new browser instance and creating a new page:

1
2
3
4
5
6
7
8
9
10
11
12
13

   const puppeteer = require('puppeteer');

   (async () => {
     const browser = await puppeteer.launch();
     const page = await browser.newPage();

     // Perform actions with the page here

     // Close the browser
     await browser.close();
   })();
   

This code sets up a basic Puppeteer script. It launches a new headless browser instance and creates a new page to work with. 2. Waiting for page to reach a stable state usingpage.waitForNavigation(): To wait for the page to reach a stable state similar todocument.readyState, you can usepage.waitForNavigation() method with the{ waitUntil: 'networkidle0' } option.

1
2
3
4
5
6

   await page.goto('https://example.com');
   await page.waitForNavigation({ waitUntil: 'networkidle0' });

   console.log('Page is in a stable state');
   

In this example,page.goto() is used to navigate to a specific URL, andpage.waitForNavigation() is called with the{ waitUntil: 'networkidle0' } option. This option ensures that the page is considered to have reached a stable state when there are no more than 0 network connections for at least 500 milliseconds. Once the page reaches a stable state, the success branch ofwaitForNavigation() is executed, and you can proceed with further actions, as indicated by the log statement. By utilizingpage.waitForNavigation() with the{ waitUntil: 'networkidle0' } option, you can achieve similar behavior todocument.readyState in Puppeteer. This method ensures that the page has finished loading its initial resources and there are no pending network connections before proceeding with subsequent actions. This functionality is useful for synchronizing your Puppeteer script with the page's loading process and ensuring that you interact with the page when it's in a stable state.